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Meet Cartesia

Cartesia builds real-time voice AI models and infrastructure for conversational applications. Its products include Sonic for text-to-speech, Ink for streaming speech-to-text, and Managed Agents for building and operating enterprise voice agents. The company was founded by researchers from the Stanford AI Lab whose work includes State Space Models, S4 and Mamba. Cartesia focuses on low-latency, efficient AI that can run across cloud, on-premise and on-device environments. Its technology is used for applications including customer service, healthcare, financial services, retail and other high-volume voice workflows.View more

Cartesia builds real-time voice AI models and infrastructure for conversational applications. Its products include Sonic for text-to-speech, Ink for streaming speech-to-text, and Managed Agents for building and operating enterprise voice agents. The company was founded by researchers from the Stanford AI Lab whose work includes State Space Models, S4 and Mamba. Cartesia focuses on low-latency, efficient AI that can run across cloud, on-premise and on-device environments. Its technology is used for applications including customer service, healthcare, financial services, retail and other high-volume voice workflows.

Founded
2023
Company size
51-200 employees
Company stage
Series A
Headquarters
San Francisco, USA

Why work here

Cartesia offers candidates the opportunity to work on foundational AI research and production systems for real-time speech, including State Space Models, speech-to-text, text-to-speech and enterprise voice agents. The company has raised about $191M and is expanding across San Francisco, London and Bengaluru. Its products are already used at meaningful production scale, including millions of monthly voice calls at customers such as EliseAI. Engineering roles involve low-latency inference, distributed systems and model infrastructure using technologies such as Python, Go, Next.js and Kubernetes. Cartesia also publicly offers competitive salary and equity, fully covered medical, dental and vision insurance, parental leave, a 401(k) and commuter support for U.S. employees.Read more

Cartesia offers candidates the opportunity to work on foundational AI research and production systems for real-time speech, including State Space Models, speech-to-text, text-to-speech and enterprise voice agents. The company has raised about $191M and is expanding across San Francisco, London and Bengaluru. Its products are already used at meaningful production scale, including millions of monthly voice calls at customers such as EliseAI. Engineering roles involve low-latency inference, distributed systems and model infrastructure using technologies such as Python, Go, Next.js and Kubernetes. Cartesia also publicly offers competitive salary and equity, fully covered medical, dental and vision insurance, parental leave, a 401(k) and commuter support for U.S. employees.

Industry
Artificial Intelligence / Voice AI
Open jobs
0 open jobs
Notable investors
Index Ventures, Kleiner Perkins, Lightspeed Venture Partners, NVIDIA, General Catalyst, Dell Technologies Capital, Samsung Ventures

Tech stack

Python

Programming Language

Go

Programming Language

TypeScript

Programming Language

JavaScript

Programming Language

Next.js

Web Framework

React

Frontend Framework

Databricks

Data Platform

Kubernetes

Container Orchestration

AWS

Cloud Platform

GCP

Cloud Platform

PyTorch

Machine Learning Framework

Key people

4 people
Karan GoelCEO & FounderView bio

Co-founder and CEO of Cartesia. Goel previously worked as a research scientist at Snorkel AI and as a machine-learning researcher with Salesforce AI Research. He earned a master's degree in machine learning from Carnegie Mellon University and completed doctoral research at Stanford, where his work included State Space Models and efficient sequence modeling.

LinkedIn
Albert GuChief Scientist & Co-founderView bio

Co-founder and Chief Scientist of Cartesia and an assistant professor at Carnegie Mellon University. Gu completed his PhD at Stanford and is a leading researcher in State Space Models. He was the first author of the S4 work and a co-author of Mamba, research that underpins Cartesia's approach to efficient sequence and speech models.

LinkedIn
Arjun DesaiCo-founderView bio

Co-founder of Cartesia with a research background in machine learning, medical imaging and scalable ML systems. Desai previously worked in machine-learning research at Apple and completed a PhD and master's degree in electrical engineering at Stanford after studying biomedical engineering and computer science at Duke University.

LinkedIn
Brandon YangCo-founderView bio

Co-founder of Cartesia focused on building systems for machine learning and commercializing real-time AI research. He was previously affiliated with Google Brain and the Stanford AI Lab, where Cartesia's founding team worked on new architectures for efficient sequence modeling.

LinkedIn

Latest company news

3 stories

Introducing Managed Agents

Cartesia

Cartesia launched Managed Agents, an end-to-end enterprise voice-agent platform combining its speech models with telephony, tool integrations and knowledge-base capabilities. The company said the system had already powered tens of millions of conversations across industries including finance, retail, hospitality and healthcare.

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Introducing Ink-2: The #1-ranked STT built for voice agents

Cartesia

Cartesia released Ink-2, a streaming speech-to-text model designed for real-time voice agents. It includes model-native semantic endpointing and was introduced with benchmark results focused on transcription accuracy, turn detection and low-latency conversational use.

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Cartesia raises $100M Series A-II

CB Insights

Cartesia raised a $100 million Series A-II round with investors including Index Ventures, Kleiner Perkins, Lightspeed and NVIDIA, bringing reported total funding to approximately $191 million.

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Jobs at Cartesia

0 open roles